Cover seal for magnetic disk enclosure having stepped mating sur

Details Cover seal for magnetic disk enclosure having stepped mating sur Cover seal for magnetic disk enclosure having stepped mating sur

1992-10-16

1994-05-31

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

174 523, 220358, G11B 1702

Patent

active

053174623

ABSTRACT:
To provide a magnetic disk apparatus in which an outline of a seal for hermetically sealing is identical with that of a cover and base having steps at the periphery thereof. In a sealed magnetic disk apparatus in which a cover and base having steps at the periphery thereof are joined together via a seal, two slopes 48 and 50 are provided, in a turned or stairs-like form, at each step portion at the periphery of a cover 60 and a base 40. The first slope 48 descends from the periphery toward the inside, and the second slope 50 connecting to the first slope descends from the inside toward the periphery. The slopes of the cover are provided to mate with those of the base, respectively. A seal 70 has an outline which is substantially identical with that of the cover 60 and the base 40 and includes projections 72 and 74 covering the slopes.

REFERENCES:
patent: 4418369 (1983-11-01), Applequist et al.
patent: 5157577 (1992-10-01), Balaud et al.
patent: 5233491 (1993-08-01), Kadonaga et al.

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